Automobile-lamp



W. A. IRWIN AND I-. I'. IACKSN.

AUTOMOBILE LAMP.

APPLICATION FILED IUNE II, ISJI9.

I amlte jam. L5, 1920.

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vv. A, 1x2-wm AND L. F.1ACKS0N.

AUTOMOBILE LAMP. APPLICATION man JUNE i1, 1919.

Patented Jn, 13, 192% 2 SHEETS-SHEET '.ZA

meinem A.. ravvisi, or NEW Yom; N. Y., AND Lne resultaron Monson, or 'Munition MASSACHUSETTS.

AUTOIYOBILE-LAMP.

Specification of Letters latent.

.application filed June 11. 191e. serial No. 303,311.

.f o autom it may wacom.'

Be it known that we, lVILLIAM A. IRwrN and Liao li". JACKSON, citizens of the United States, and resi-dents, respectively, of the city ol' .New York. borough of lvlanhattan, in the county and State of New York, and Taunton, in the county of Bristol and State of lllassachusctts, have invented a new and lniproved Automobile-Lamp, of which the :following is a full, clear, and exact description.

This invention relates to vehicle lamps and has particular reference to headlights Yfor motor vehicles or the like.

Among the objects of the invention is to provide a lamp designed for the purpose of throwing ample light on the roadway ahead without any possibility of glar Another object is to provide a lamp casing li avinp; means `for diffusing the light upward and lalcrally in all directions so as to illuminat 'ne roadway at the sidesy of the vehicle l surrounding objects. che provision ot means such as set 'Jn herein or their equivalent the danger or likelihood of accidents or interference along the street or roadway so. commonly inavoided. u ini the foregoing and other objects in the invention consists in the arrangement. and combination of parts hereinafter l and claimed, and while the inve .tion is not restricted to the exact details oi construction disclosed or suggestedv herein 7 still for the purpose of illustrating apractical embodiment thereof reference is had to the accompanying drawings, in which like reference characters designate the saine vper .s in the several views, and in which- Figure l is a side elevation showing my r' movement attached to a standard vehicle an, parts being broken. away.

g. a lrontelevation of the same. li is a vertical transverse section on I a detail ot one of the ribs for the Isectional cylinder,

to imperfect illumination may bev ing including an extension hood and a transparent wall vstructure, anda lamp bulb or its equivalent located within the "casing in such av manner as to throw its light directly outward laterallyl as well as iforvvard.v `As' indicated in the drawings We provide a. i

means for carrying ont our im rovement in a practical manner using as a asis a lamp casing l() which may be of any standard design or size and including a redactor 11,

lens or window 12, and a. lens holdingv riin 13. l

Ordinarily the lamp bulb lll is. located within 'or hack of the lens 1 2, but in our improvement we provide 'a central hole l2 To effect this result we employ `an 'eX- tension hase l5 of any suitable clniraoterA for the bulli, out we lia-ve found the means illustrated in Fig. 5 to be suitable for this purpose, the same embodyinga' pluralityof interchangeable coupling sections, each sec tion carrying a plurality of conductorsl,A the conductors of each section being adapted to make Contact with the conductors of thenext adjacent sections. The lamp bulb ol)- viously is 'attachable to the outermost sec* tion irrespective of the number of sections' employed. (lhvionsly in pla-oe of the builtup base as illust-rated a .singleor integral base may be made in the formel a special lamp if desired, depending upon the design of the original or main supporting 'lamp casing.

llindicates la. hood structure comprising a collar i8 preferably o' annular tormenti havin; an outwardly Flared front edge, a

rim 19', the rear end of which is bent inward forming a curved lip, and a -dimmer lens gripped between the rear edge of the col# larand the. innermost edge of the lip ofthe rim lil.. These parts may he secured firmly together by any suitable means, but we pre fel' the means indicated in4 Figsl and '4land comprising a plurality ot' angular clips 21 carried by the collar and b earin,f F rear-` ward against the outer face of the dimmer in the lens and extend the lamp bulb so as to bring it beyond or 1n front of the lens les . rims 13 and 19.

lens 2O Where they are held iirmly by means of clamping bolts 22, or their equivalent, passing radially of the collar through the overlapping portions of the'collar and rim 1-9 as Well asthrOughthe parallel portions of the clips 21.

The hood 17, made up as indicated above, is carried suliciently far in advance ofthe main lamp casing 101 to afford a clear space between the lamp casing and the hood through Which the light from the lamp bulb 14 is ,adapted to be di'used laterally Without vmaterial obstruction to illuminate the vehicle as Well as the roadway, In order to support the hood in its forwardA spaced lrelation to the casing 10 we employ a plu- .rality of ribs 23 made preferably of metal and having angularly disposed ends 24, the intermediate' portions of the ribs being carried inward toward the inner margins of the Any suitable number of these ribs may be employed such number, however, includingtwo lying' diametrically opposite each other and on the same level. The angularly shaped ends 24 of the ribsare connected to the hood and to the rim 13 by screws, bolts or the like indicated at 25 and 26 respectively With the exception'that the aforesaid two ribs that are on the same level are connected to the hood by means of a rod 27 which projects entirely across the hood and beyond the side portions thereof to a distance great enough to accommodate hoods of various sizes, designs or dimensions. Upon this diametrically arranged .rod 27 is sup-ported a reflector 28 shown in the form of a flat panel with a mirroredI inner surface 29, the outer portion ofthere'lectorbeing opaque so as to serve as a positive dimmer preventing the glare of the light from being cast too highfjalong the roadway. The ends of the rod 27 after adjustment to the proper size of hood `may be clipped oil if they are too long so. that when the nuts 30 are applied tothe ends a neat construction is provided. The nuts 30 provide means for not only securing the adjacent portions of the hood together to the horizontal ribs 28, but also serve to lock the reflector 28 at any desired elevation or `angle according to the type of lamp-and y the local requirements as to the projection y of thelight. The ribs 23 obviously may be made of any necessary strength or rigidity to constitute a satisfactory support for the lamp hood.

The dimmer lens -20 is peculiarly constructed so as to have upper and lower spaced translucent segments or zones 20 and 20b respectively. The upper segment 205 covers substantially half of the area of the lens While the lower segment 20" covers practically only about one half of the lower area, leaving a horizontal zone or segment 20c between thehorizontal diameter of the In other vWords the shell is made of a lens and the upper edge of the lower translucent zone LOb perfectly clear so as to transmit a considerable portion of the light direct from the bulb and the interior of the lamp casing so as to illuminate the road- 'ried in advance of the clear portion. Any

suitable means may be 'provided to fill the gap between the standard lamp casing and the hood 17 in connection with the ribs This means in Figs. 17 2 and 3 comprises a hollow transparent cylinder or' shell 31 the same being shown as an unbroken cylindrical shell andextending forward fromthe standard lens 12 to approximately contact With thew dimmer lens 2O and held in lace from lateral movement by means o set screws 32 tapped through the ribs 23 and locked in place by means of lock nuts 33. This shell is made preferably of transparent glass or its equivalent so that light may proceed laterally therethrough from the vbulb 14 for. the purposes already set forth.

' Figs. 6 and 7 show a'variation in rib structure and coperatin 'shell structure.

lurality of cylindrical shell segments 31 shown as four in number and held in place by channel formation of ribs 23. lin other Words the main portion of each rib is of double channel or T-form in cross section whereby there are provided on opposite sides of each rib grooves 23a into which the f longitudinal edge portions of the segments 31 are supported. The ribs are secured in place by means similar to the means already described in connection With the first set of figures, and the ribs serve the same purposes so far as the hood and dinimer means are concerned` as the ribs 23.

Referring now to Figs. 8 and 9 We Wish to point out that We mayuse a series ofi holes 34. Thus our attachment may be applied to standard lamp .casings Without any alteration of such standard lam) casings, except the boring of a few simple oles.

We claim :A

l. The combination with a lampjnasing and a source of light therein, of a hood compi-ism la Cenar ma ,iight medifying means Wi'j inthe collar eerving to dim the beam of light cast forward from the lamp casing, a series of substantially arallel. ribs having their ends xed to the anni) casing and the heed whereby fthe hood is held in forward spaced" relation te the lamp casing, and cylindrical transparent shell means ex tending between the casing and ythe heed and Within the ribs. l A

2. Thev combination .with a lamp casing and a source -o lightl therein, o e., hood' serving es e. dimming device' in advance of Y the heed in rigid position, and transparent shell means filling 'the 'spacehetween 'the cae/ing and the hood and serving. tn allow free emissien of light laterally througvthe space between the casing and thehun WiLLii-iivi A; www. me FREDEMCKJACKSGN' 

